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GUK Nylon Insert Locking Nuts are available in diameters from M10 to M100. Other sizes available to order.

TECHNICAL INFORMATION (mm)

Ref

d

D

D2

H

h

s

t

Grooves

GUK 0

M10 x 0.75

18

15

7.6

4.5

3

15

4

GUK 1

M12 x 1.00

21

18

7.6

4.5

3

18

4

GUK 2

M15 x 1.00

24

21

8.6

5.5

4

21

4

GUK 3

M17 x 1.00

28

24

8.7

5.5

4

24

4

GUK 4

M20 x 1.00

32

27

9.6

6.0

4

27

4

GUK 5

M25 x 1.50

38

33

10.5

6.5

5

33

4

GUK 6

M30 x 1.50

44

38

10.7

6.6

5

38

4

GUK 7

M35 x 1.50

50

44

11.3

7.0

5

44

4

GUK 8

M40 x 1.50

56

50

12.3

7.7

6

50

4

GUK 9

M45 x 1.50

62

55

12.3

7.8

6

55

4

GUK 10

M50 x 1.50

68

61

12.9

8.1

6

61

4

GUK 11

M55 x 2.00

75

68

13.4

8.2

7

68

6

GUK 12

M60 x 2.00

80

73

13.4

8.2

7

73

6

GUK 13

M65 x 2.00

85

77

14.5

9.0

7

77

6

GUK 14

M70 x 2.00

92

84

14.5

9.2

8

84

6

GUK 15

M75 x 2.00

98

89

15.5

10.0

8

89

6

GUK 16

M80 x 2.00

105

96

16.5

11.2

10

96

8

GUK 17

M85 x 2.00

110

100

17.5

12.1

10

100

8

GUK 18

M90 x 2.00

210

110

17.7

12.5

10

110

8

GUK 19

M95 x 2.00

125

115

18.7

13.5

10

115

8

GUK 20

M100 x 2.00

130

120

19.7

14.5

10

120

8

GUK Nylon Insert locking nuts are suitable for similar applications as the KM series locking nuts, however the addition of the nylon insert located toward the top of the nut deforms over the mating thread, capturing the bolt or stud. This provides a locking feature, causing resistance or prevailing torque, keeping the nut locked in position and resistant to vibration.

In addition to the polyamide insert locking feature, GUK locking nuts have four equally spaced slots machined into the outer diameter of the nut which enable the nut to be secured into position using the appropriate tab washer by bending the tab into the slots.

Note: GUK Nylon Insert Nuts are not suitable in application with high temperatures.